<?php
/**
 * Created by PhpStorm.
 * User: nathan
 * Date: 2019/2/13
 * Time: 11:58
 */

namespace Refine\Iplookup;

/**
 * Interface IplookupInterface
 */
interface IplookupInterface
{
    /**
     * @param string $ip
     * @return string
     */
    public function lookup($ip);
}